But wouldn't it be nice if Windows could be modularized in the process of such an open-sourcing effort, such that that comparison wouldn't be a mistake? For example, if just the NT kernel could be separated into its own project, with a clean linkage-point, there'd probably be all sorts of interesting efforts to, for example, create a Debian/NT distribution, or cross-pollinate driver code between Windows and Linux. (Actually, having two major open-source consumer-PC OSes would probably finally force a standardization on a HAL to allow a single driver-pool code base to be shared between the two systems.)